/* 移动端通用样式 */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

:root {
    --primary-color: #667eea;
    --primary-dark: #5568d3;
    --success-color: #48bb78;
    --danger-color: #f56565;
    --warning-color: #ed8936;
    --text-primary: #2d3748;
    --text-secondary: #718096;
    --bg-primary: #ffffff;
    --bg-secondary: #f7fafc;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: var(--text-primary);
    font-size: 16px;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* 容器 */
.container {
    max-width: 100%;
    padding: 0 20px;
    margin: 0 auto;
}

/* 页面包装器 */
.page-wrapper {
    min-height: 100vh;
    padding-bottom: 80px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

/* 头部导航 */
.mobile-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 15px 20px;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.back-btn {
    background: none;
    border: none;
    padding: 8px;
    cursor: pointer;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: all 0.3s;
}

.back-btn:active {
    background: var(--bg-secondary);
    transform: scale(0.95);
}

.header-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Logo */
.logo {
    height: 32px;
    width: auto;
}

/* 按钮样式 */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
    user-select: none;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: white;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color) 0%, #38a169 100%);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color) 0%, #e53e3e 100%);
    color: white;
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* 卡片 */
.card {
    background: white;
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 15px;
    box-shadow: var(--shadow-sm);
}

/* 表单元素 */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 14px;
}

.form-control {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-size: 16px;
    transition: all 0.3s;
    background: white;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* 输入组 */
.input-group {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 20px;
}

.input-group .form-control {
    padding-left: 48px;
}

/* 底部导航栏 */
.mobile-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    border-top: 1px solid var(--border-color);
    padding: 10px 0 calc(10px + env(safe-area-inset-bottom));
    display: flex;
    justify-content: space-around;
    align-items: center;
    z-index: 1000;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
}

.nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 8px;
    text-decoration: none;
    color: var(--text-secondary);
    transition: all 0.3s;
    border-radius: 12px;
    margin: 0 4px;
}

.nav-item:active {
    background: var(--bg-secondary);
    transform: scale(0.95);
}

.nav-item.active {
    color: var(--primary-color);
}

.nav-icon {
    font-size: 24px;
    margin-bottom: 4px;
}

.nav-label {
    font-size: 12px;
    font-weight: 500;
}

/* 加载动画 */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: var(--text-secondary);
    flex-direction: column;
    gap: 12px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(102, 126, 234, 0.1);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-icon {
    font-size: 64px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-text {
    font-size: 16px;
    margin-bottom: 8px;
}

.empty-hint {
    font-size: 14px;
    color: var(--text-secondary);
}

/* 提示消息 */
.toast {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    z-index: 10000;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

/* 遮罩层 */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9998;
    animation: fadeIn 0.3s;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* 模态框 */
.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    border-radius: 16px;
    padding: 24px;
    z-index: 9999;
    max-width: 90%;
    width: 340px;
    animation: scaleIn 0.3s;
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: translate(-50%, -50%) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1);
    }
}

/* 安全区域适配 */
@supports (padding: max(0px)) {
    body {
        padding-top: max(0px, env(safe-area-inset-top));
    }
    
    .mobile-header {
        padding-top: max(15px, calc(env(safe-area-inset-top) + 15px));
    }
}

/* 图片优化 */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* 滚动优化 */
.scrollable {
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

/* 禁用文本选择 */
.no-select {
    user-select: none;
    -webkit-user-select: none;
}

/* 文本省略 */
.text-ellipsis {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.text-ellipsis-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 徽章 */
.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
}

.badge-primary {
    background: rgba(102, 126, 234, 0.1);
    color: var(--primary-color);
}

.badge-success {
    background: rgba(72, 187, 120, 0.1);
    color: var(--success-color);
}

.badge-danger {
    background: rgba(245, 101, 101, 0.1);
    color: var(--danger-color);
}

/* 分割线 */
.divider {
    height: 1px;
    background: var(--border-color);
    margin: 20px 0;
}

/* 工具类 */
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.pt-1 { padding-top: 8px; }
.pt-2 { padding-top: 16px; }
.pt-3 { padding-top: 24px; }
.pb-1 { padding-bottom: 8px; }
.pb-2 { padding-bottom: 16px; }
.pb-3 { padding-bottom: 24px; }

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }

.text-primary { color: var(--primary-color); }
.text-success { color: var(--success-color); }
.text-danger { color: var(--danger-color); }
.text-secondary { color: var(--text-secondary); }

.fw-bold { font-weight: 600; }
.fw-normal { font-weight: 400; }

.d-flex { display: flex; }
.flex-column { flex-direction: column; }
.align-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }

